Comments

On Mon, Jun 9, 2014 at 10:51 AM, Otavio Salvador
<otavio@ossystems.com.br> wrote:
> On Sun, Jun 8, 2014 at 12:51 PM, John Weber <rjohnweber@gmail.com> wrote:>> On 6/6/14, 6:10 PM, Eric Nelson wrote:>>> On 06/05/2014 01:33 PM, Eric Nelson wrote:>>>> On 06/05/2014 01:30 PM, John Weber wrote:>>>>>>>>>> <snip>>>>>>>>>>> I think you're right, but as far as I know the only other entity that>>>>> could confirm this would be Boundary Devices. Eric - do you see this>>>>> same issue when connecting your camera to Nitrogen6x?>>>>>>>>> I've kinda followed this thread, but I'm kinda buried and it will take>>>> a day or two for me to confirm or deny this.>>>>>>> I just tested across a dozen assorted reboots/resets/power-cycles>>> and didn't see the issue with an OV5642 parallel camera and 3.10.17.>>>>>> I **don't** have udev-cache configured.>>>> I suspect that we will need to disable it on Wandboard as well.>> This is not a good fix.>> I added a patch, for OE-Core/Poky, attached; please confirm it fixes it.
Oops!

Hi Otavio,
On 6/9/14, 8:52 AM, Otavio Salvador wrote:
> On Mon, Jun 9, 2014 at 10:51 AM, Otavio Salvador> <otavio@ossystems.com.br> wrote:>> On Sun, Jun 8, 2014 at 12:51 PM, John Weber <rjohnweber@gmail.com> wrote:>>> On 6/6/14, 6:10 PM, Eric Nelson wrote:>>>> On 06/05/2014 01:33 PM, Eric Nelson wrote:>>>>> On 06/05/2014 01:30 PM, John Weber wrote:>>>>>> <snip>>>>>>>>>>>>> I think you're right, but as far as I know the only other entity that>>>>>> could confirm this would be Boundary Devices. Eric - do you see this>>>>>> same issue when connecting your camera to Nitrogen6x?>>>>>>>>>>> I've kinda followed this thread, but I'm kinda buried and it will take>>>>> a day or two for me to confirm or deny this.>>>>>>>>> I just tested across a dozen assorted reboots/resets/power-cycles>>>> and didn't see the issue with an OV5642 parallel camera and 3.10.17.>>>>>>>> I **don't** have udev-cache configured.>>> I suspect that we will need to disable it on Wandboard as well.>> This is not a good fix.>>>> I added a patch, for OE-Core/Poky, attached; please confirm it fixes it.> Oops!>
Thanks! From my testing this will work.

Hi all,
On 06/09/2014 06:52 AM, Otavio Salvador wrote:
> On Mon, Jun 9, 2014 at 10:51 AM, Otavio Salvador> <otavio@ossystems.com.br> wrote:>> On Sun, Jun 8, 2014 at 12:51 PM, John Weber <rjohnweber@gmail.com> wrote:>>> On 6/6/14, 6:10 PM, Eric Nelson wrote:>>>> On 06/05/2014 01:33 PM, Eric Nelson wrote:>>>>> On 06/05/2014 01:30 PM, John Weber wrote:>>>>>>>>>>>> <snip>>>>>>>>>>>>> I think you're right, but as far as I know the only other entity that>>>>>> could confirm this would be Boundary Devices. Eric - do you see this>>>>>> same issue when connecting your camera to Nitrogen6x?>>>>>>>>>>> I've kinda followed this thread, but I'm kinda buried and it will take>>>>> a day or two for me to confirm or deny this.>>>>>>>>> I just tested across a dozen assorted reboots/resets/power-cycles>>>> and didn't see the issue with an OV5642 parallel camera and 3.10.17.>>>>>>>> I **don't** have udev-cache configured.>>>>>> I suspect that we will need to disable it on Wandboard as well.>>>> This is not a good fix.>>>> I added a patch, for OE-Core/Poky, attached; please confirm it fixes it.>
I just tested again on an image with udev-cache, and don't see any
issues on a Nitrogen6x board (CSI camera).
I'm not sure what's different about my environment.
Regards,
Eric

Hi Eric,
On 6/9/14, 12:16 PM, Eric Nelson wrote:
> Hi all,>> On 06/09/2014 06:52 AM, Otavio Salvador wrote:>> On Mon, Jun 9, 2014 at 10:51 AM, Otavio Salvador>> <otavio@ossystems.com.br> wrote:>>> On Sun, Jun 8, 2014 at 12:51 PM, John Weber <rjohnweber@gmail.com> wrote:>>>> On 6/6/14, 6:10 PM, Eric Nelson wrote:>>>>> On 06/05/2014 01:33 PM, Eric Nelson wrote:>>>>>> On 06/05/2014 01:30 PM, John Weber wrote:>>>>>>> <snip>>>>>>>>>>>>>>> I think you're right, but as far as I know the only other entity that>>>>>>> could confirm this would be Boundary Devices. Eric - do you see this>>>>>>> same issue when connecting your camera to Nitrogen6x?>>>>>>>>>>>>> I've kinda followed this thread, but I'm kinda buried and it will take>>>>>> a day or two for me to confirm or deny this.>>>>>>>>>>> I just tested across a dozen assorted reboots/resets/power-cycles>>>>> and didn't see the issue with an OV5642 parallel camera and 3.10.17.>>>>>>>>>> I **don't** have udev-cache configured.>>>> I suspect that we will need to disable it on Wandboard as well.>>> This is not a good fix.>>>>>> I added a patch, for OE-Core/Poky, attached; please confirm it fixes it.> I just tested again on an image with udev-cache, and don't see any> issues on a Nitrogen6x board (CSI camera).>> I'm not sure what's different about my environment.>> Regards,>>> Eric>
Not sure either, but are you testing with the parallel CSI or MIPI CSI camera?
Could there be a difference in the how the drivers are loaded?
John

Hi John,
On 06/09/2014 10:35 AM, John Weber wrote:
> Hi Eric,> > On 6/9/14, 12:16 PM, Eric Nelson wrote:>> Hi all,>>>> On 06/09/2014 06:52 AM, Otavio Salvador wrote:>>> On Mon, Jun 9, 2014 at 10:51 AM, Otavio Salvador>>> <otavio@ossystems.com.br> wrote:>>>> On Sun, Jun 8, 2014 at 12:51 PM, John Weber <rjohnweber@gmail.com>>>>> wrote:>>>>> On 6/6/14, 6:10 PM, Eric Nelson wrote:>>>>>> On 06/05/2014 01:33 PM, Eric Nelson wrote:>>>>>>> On 06/05/2014 01:30 PM, John Weber wrote:>>>>>>>> <snip>>>>>>>>>>>>>>>>> I think you're right, but as far as I know the only other entity>>>>>>>> that>>>>>>>> could confirm this would be Boundary Devices. Eric - do you see>>>>>>>> this>>>>>>>> same issue when connecting your camera to Nitrogen6x?>>>>>>>>>>>>>>> I've kinda followed this thread, but I'm kinda buried and it will>>>>>>> take>>>>>>> a day or two for me to confirm or deny this.>>>>>>>>>>>>> I just tested across a dozen assorted reboots/resets/power-cycles>>>>>> and didn't see the issue with an OV5642 parallel camera and 3.10.17.>>>>>>>>>>>> I **don't** have udev-cache configured.>>>>> I suspect that we will need to disable it on Wandboard as well.>>>> This is not a good fix.>>>>>>>> I added a patch, for OE-Core/Poky, attached; please confirm it fixes>>>> it.>> I just tested again on an image with udev-cache, and don't see any>> issues on a Nitrogen6x board (CSI camera).>>>> I'm not sure what's different about my environment.>>>> Regards,>>>>>> Eric>>> Not sure either, but are you testing with the parallel CSI or MIPI CSI> camera? Could there be a difference in the how the drivers are loaded?>
I tested using parallel CSI.
AFAIK, the driver load process is the same for both.
Regards,
Eric

Hi Eric,
On 6/9/14, 12:49 PM, Eric Nelson wrote:
> Hi John,>> On 06/09/2014 10:35 AM, John Weber wrote:>> Hi Eric,>>>> On 6/9/14, 12:16 PM, Eric Nelson wrote:>>> Hi all,>>>>>> On 06/09/2014 06:52 AM, Otavio Salvador wrote:>>>> On Mon, Jun 9, 2014 at 10:51 AM, Otavio Salvador>>>> <otavio@ossystems.com.br> wrote:>>>>> On Sun, Jun 8, 2014 at 12:51 PM, John Weber <rjohnweber@gmail.com>>>>>> wrote:>>>>>> On 6/6/14, 6:10 PM, Eric Nelson wrote:>>>>>>> On 06/05/2014 01:33 PM, Eric Nelson wrote:>>>>>>>> On 06/05/2014 01:30 PM, John Weber wrote:>>>>>>>>> <snip>>>>>>>>>>>>>>>>>>> I think you're right, but as far as I know the only other entity>>>>>>>>> that>>>>>>>>> could confirm this would be Boundary Devices. Eric - do you see>>>>>>>>> this>>>>>>>>> same issue when connecting your camera to Nitrogen6x?>>>>>>>>>>>>>>>>> I've kinda followed this thread, but I'm kinda buried and it will>>>>>>>> take>>>>>>>> a day or two for me to confirm or deny this.>>>>>>>>>>>>>>> I just tested across a dozen assorted reboots/resets/power-cycles>>>>>>> and didn't see the issue with an OV5642 parallel camera and 3.10.17.>>>>>>>>>>>>>> I **don't** have udev-cache configured.>>>>>> I suspect that we will need to disable it on Wandboard as well.>>>>> This is not a good fix.>>>>>>>>>> I added a patch, for OE-Core/Poky, attached; please confirm it fixes>>>>> it.>>> I just tested again on an image with udev-cache, and don't see any>>> issues on a Nitrogen6x board (CSI camera).>>>>>> I'm not sure what's different about my environment.>>>>>> Regards,>>>>>>>>> Eric>>>>> Not sure either, but are you testing with the parallel CSI or MIPI CSI>> camera? Could there be a difference in the how the drivers are loaded?>>> I tested using parallel CSI.>> AFAIK, the driver load process is the same for both.>> Regards,>>> Eric
OK. I don't think our environments are very different, so I suspect that it
might be one of the few kernel enhancements that you've made.
BTW - did you disable udev-cache by default? If so where did you do this in Yocto?
John

Hi John,
On 06/09/2014 10:59 AM, John Weber wrote:
> Hi Eric,> > On 6/9/14, 12:49 PM, Eric Nelson wrote:>> Hi John,>>>> On 06/09/2014 10:35 AM, John Weber wrote:>>> Hi Eric,>>>>>> On 6/9/14, 12:16 PM, Eric Nelson wrote:>>>> Hi all,>>>>>>>> On 06/09/2014 06:52 AM, Otavio Salvador wrote:>>>>> On Mon, Jun 9, 2014 at 10:51 AM, Otavio Salvador>>>>> <otavio@ossystems.com.br> wrote:>>>>>> On Sun, Jun 8, 2014 at 12:51 PM, John Weber <rjohnweber@gmail.com>>>>>>> wrote:>>>>>>> On 6/6/14, 6:10 PM, Eric Nelson wrote:>>>>>>>> On 06/05/2014 01:33 PM, Eric Nelson wrote:>>>>>>>>> On 06/05/2014 01:30 PM, John Weber wrote:>>>>>>>>>> <snip>>>>>>>>>>>>>>>>>>>>> I think you're right, but as far as I know the only other entity>>>>>>>>>> that>>>>>>>>>> could confirm this would be Boundary Devices. Eric - do you see>>>>>>>>>> this>>>>>>>>>> same issue when connecting your camera to Nitrogen6x?>>>>>>>>>>>>>>>>>>> I've kinda followed this thread, but I'm kinda buried and it will>>>>>>>>> take>>>>>>>>> a day or two for me to confirm or deny this.>>>>>>>>>>>>>>>>> I just tested across a dozen assorted reboots/resets/power-cycles>>>>>>>> and didn't see the issue with an OV5642 parallel camera and>>>>>>>> 3.10.17.>>>>>>>>>>>>>>>> I **don't** have udev-cache configured.>>>>>>> I suspect that we will need to disable it on Wandboard as well.>>>>>> This is not a good fix.>>>>>>>>>>>> I added a patch, for OE-Core/Poky, attached; please confirm it fixes>>>>>> it.>>>> I just tested again on an image with udev-cache, and don't see any>>>> issues on a Nitrogen6x board (CSI camera).>>>>>>>> I'm not sure what's different about my environment.>>>>>>>> Regards,>>>>>>>>>>>> Eric>>>>>>> Not sure either, but are you testing with the parallel CSI or MIPI CSI>>> camera? Could there be a difference in the how the drivers are loaded?>>>>> I tested using parallel CSI.>>>> AFAIK, the driver load process is the same for both.>>>> Regards,>>>>>> Eric> OK. I don't think our environments are very different, so I suspect> that it might be one of the few kernel enhancements that you've made.> > BTW - did you disable udev-cache by default? If so where did you do> this in Yocto?>
This was purely un-intentional. I think I was working with a build that
started with core-image-minimal.
Regards,
Eric